Sodium aluminium hexafluoride is an inorganic compound with formula Na3AlF6.
The mineral form of sodium hexafluoroaluminate, which is called cryolite
Sodium hexafluoroaluminate is a biochemical for proteomics research.
It is also used in the production of
synthetic resins for abrasives and in the manufacture of cutting or grinding discs
Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Store at room temperature.
The main application of synthetic cryolite is as a solvent (or flux) for electrolysis of aluminium oxides such as bauxite. The conversion of aluminium oxides into metallic aluminium requires that the metal ions be dissolved so that they can accept the electrons provided in the electrolysis cell. A mixture of cryolite and some aluminium trifluoride is used as that solvent. Unlike typical solutions, this one requires temperatures approaching 1000 °C to melt. Sodium aluminium hexafluoride is also used as a pesticide. Other uses include a whitener for enamels and an opacifier for glass.